An atrioventricular canal defect, or AV canal, is a combination of several closely associated heart problems that result in a large defect in the center of the heart.
Tetralogy of Fallot (TOF) is a serious congenital heart defect where the heart’s anatomy prevents enough oxygen-poor (blue) blood from flowing to the lungs to receive oxygen.
Transposition of the great arteries (TGA) is when the “great” arteries, the aorta and the right ventricle, are reversed in their origins from the heart.